#201 compile error, crypt.h

[Adrian]

Compilation on Ubuntu creates this error:
/home/adrian/cdesktopenv-code/cde/programs/dtaction/Main.c:734:(.text+0xc64): undefined reference to crypt' /usr/bin/x86_64-linux-gnu-ld.bfd: /home/adrian/cdesktopenv-code/cde/programs/dtaction/Main.c:739:(.text+0xcfd): undefined reference tocrypt'